document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=927419>Question 927419</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much water must be added to 300l of a solution so that it's concentration may change from 25% to 20% </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #562930 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=562930\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How much water must be added to 300l of a solution so that it's concentration may change from 25% to 20%<BR>\n" );
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document.write( "Equation::<BR>\n" );
document.write( "water + water = water<BR>\n" );
document.write( "0.75*3001 + 1*x = 0.80(3001+x)<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "75*3001 + 100x = 80*3001 + 80x <BR>\n" );
document.write( "-------<BR>\n" );
document.write( "20x = 5*3001<BR>\n" );
document.write( "x = 750.25 units of water must be added<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );